Jefferson is a city located in Union County South Dakota. Jefferson has a 2024 population of 439. Jefferson is currently declining at a rate of -2.01% annually and its population has decreased by -7.19% since the most recent census, which recorded a population of 473 in 2020.
The average household income in Jefferson is $78,129 with a poverty rate of 3.21%. The median age in Jefferson is 34 years: 33.6 years for males, and 38.5 years for females.
According to the most recent ACS, the racial composition of Jefferson was:
Race | Population | Percentage (of total) |
|---|---|---|
| White | 647 | 90.24% |
| Native American | 30 | 4.18% |
| Two or more races | 23 | 3.21% |
| Other race | 17 | 2.37% |
| Black or African American | 0 | 0% |
| Asian | 0 | 0% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
White
Native American
Two or more races
Other race
Black or African American
Asian
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 316 | 2.27 | 86.7 | 13.3 |
| Married | 153 | 2.7 | 100 | 0 |
| Non Family | 116 | 1.29 | 70.7 | 29.3 |
| Male | 25 | 3.8 | 84 | 16 |
| Female | 22 | 2.68 | 81.8 | 18.2 |
2.77
Average Family Size
2.27
Average Household Size
86.7%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 26 | 5% |
| Associates Degree | 94 | 18.08% |
| Bachelors Degree | 114 | 21.92% |
| Graduate Degree | 15 | 2.88% |
| High School Graduate | 175 | 33.65% |
| Less Than 9th Grade | 4 | 0.77% |
| Some College | 92 | 17.69% |
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 462 | 454 | 106 |
| Hispanic | 34 | 12 | 0 |
| Native American | 22 | 12 | 0 |
| 2+ Races | 19 | 19 | 18 |
| Other Race | 17 | 5 | 5 |
The highest rate of high school graduation is among 2+ races people with a rate of 100%.
The highest rate of bachelors degrees is among 2+ races people with a rate of 94.74%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $46,319 | $45,833 | $65,875 |
| Graduate Degree | $0 | $0 | $0 |
| High School Graduate | $50,769 | $63,750 | $35,833 |
| Less Than 9th Grade | $66,406 | $66,406 | $0 |
| Overall | $41,250 | $52,875 | $36,123 |
| Some College | $36,607 | $53,304 | $35,960 |
$41,250
Average Earnings
$52,875
Average Male
$36,123
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
94.02% of Jefferson residents speak only English, while 5.98% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 5.69% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 647 | 22 | 3.4% |
| Other | 17 | 1 | 5.88% |
| Hispanic | 46 | 1 | 2.17% |
3.21%
Overall Poverty Rate
2.35%
Male Poverty Rate
4.19%
Female Poverty Rate
The race most likely to be in poverty in Jefferson is Other, with 5.88% below the poverty level.
The race least likely to be in poverty in Jefferson is Hispanic, with 2.17% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 0%, and for those that did not work, the poverty rate was 15.27%.
rate
Rate | Poverty |
|---|---|
| High School | 7.43% |
| Less Than 9th Grade | 3.33% |
| Bachelors or Greater | 3.1% |
| Some College | 1.08% |
rate
Rate | Poverty |
|---|---|
| Male Employed | 0% |
| Male Unemployed | 0% |
| Female Employed | 0% |
| Female Unemployed | 0% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | $81,554 | $84,363 |
| Households | $81,149 | $78,129 |
| Married Families | $85,750 | $-999,999,999 |
| Non Families | $50,000 | $62,464 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
51.2%
Overall Marriage Rate
44.5%
Male Marriage Rate
59.5%
Female Marriage Rate
male
female
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 20-34.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
60
Number of Veterans
58
Male Veterans
2
Female Veterans
War | Veterans |
|---|---|
| Second Gulf War | 38 |
| Vietnam | 16 |
| First Gulf War | 3 |
| Korea | 2 |
| World War II | 0 |
count
Age Group | Veterans |
|---|---|
| 18 to 34 | 24 |
| 65 to 74 | 16 |
| 35 to 54 | 14 |
| 55 to 64 | 4 |
| 75+ | 2 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 60 | 12.93% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
1.67%
Veteran Poverty Rate
11.67%
Veteran Disability Rate
LaborForceParticipation
73.6%
Labor Force Participation
66.1%
Employment Rate
9.9%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
20.08%
Born in Jefferson
96.09%
Native Born
3.91%
Foreign Born
3.91%
Non Citizen
0%
Naturalized
96.09% of Jefferson residents were born in the United States, with 20.08% having been born in South Dakota. 3.91% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
Year | Population | Growth | Change |
|---|---|---|---|
| 2029 | 398 | -8 | -1.97% |
| 2028 | 406 | -8 | -1.93% |
| 2027 | 414 | -9 | -2.13% |
| 2026 | 423 | -8 | -1.86% |
| 2025 | 431 | -8 | -1.82% |
| 2024 | 439 | -9 | -2.01% |
| 2023 | 448 | -9 | -1.97% |
| 2022 | 457 | -7 | -1.51% |
| 2021 | 464 | -9 | -1.9% |
| 2020 | 473 | -42 | -8.16% |
| 2019 | 515 | 2 | 0.39% |
| 2018 | 513 | 0 | 0% |
| 2017 | 513 | -6 | -1.16% |
| 2016 | 519 | -4 | -0.76% |
| 2015 | 523 | -16 | -2.97% |
| 2014 | 539 | -3 | -0.55% |
| 2013 | 542 | -9 | -1.63% |
| 2012 | 551 | 1 | 0.18% |
| 2011 | 550 | -1 | -0.18% |
| 2010 | 551 | 0 | 0% |